首页|Hydrostabilization of Straight-Run Naphtha Pyrocondensate in the Presence of a Nickel-Chromium Catalyst
Hydrostabilization of Straight-Run Naphtha Pyrocondensate in the Presence of a Nickel-Chromium Catalyst
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NSTL
Springer Nature
Hydrostabilization of straight-run naphtha pyrolysis condensate in the presence of a commercial nickel-chromium catalyst at 80-120°C, hydrogen-to-feed ratio of 0.3-0.8 m~3/L, and process time of 30-120 min was studied. The hydrostabilized pyrocondensate yield increases with an increase in the hydrogen content. The degree of hydrogenation has pronounced temperature dependence at a low-hydrogen hydrogen-to-feed ratio, whereas with an increase in this ratio the temperature dependence levels off. A detailed study of the fractional and component composition of the hydrostabilized pyrocondensate revealed significant differences in the catalyst selectivity depending on the reaction conditions. Low process temperature and high hydrogen-to-feed ratio favor intense formation of aromatic hydrocarbons (at 100°C and hydrogen-to-feed ratio of 0.8 m~3/L, the yield was 82 wt %), whereas at elevated temperatures and low hydrogen content the formation intensity shifts toward isoparaffins (at 120°C and 0.5 m~3/L H2, the yield was 32 wt %). A possible hydrogenation mechanism ensuring the selectivity of the nickel-chromium catalyst in the process was outlined. The parameters of the fractional and hydrocarbon compositions and the octane numbers of the distillates obtained allow them to be suggested as components of motor fuels.
hydrostabilizationpyrocondensatenickel-chromium catalystaromatic hydrocarbons (ArHCs)isoparaffin hydrocarbonsdegree of hydrogenationfractional composition
R. A. Ismayilova、R. J. Ibadova、E. A. Guseinova
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Research Institute for Geotechnological Problems of Oil, Gas, and Chemistry, Azerbaijan State University of Oil and Industry, Baku, AZ1010 Azerbaijan
Azerbaijan State University of Oil and Industry, Baku, AZ1010 Azerbaijan
NSTL
Springer Nature
